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EGTB: loss in 13 half-moves

# move score
1 Rg7 loss in 12 half-moves
2 Rh7 loss in 10 half-moves
3 Kg7 loss in 8 half-moves
4 Rf8 loss in 6 half-moves
5 Kf8 loss in 4 half-moves
6 Kh7 loss in 4 half-moves
7 Kh8 loss in 4 half-moves
8 Rf6 loss in 4 half-moves
9 Ra7 loss in 2 half-moves
10 Rb7 loss in 2 half-moves
11 Rc7 loss in 2 half-moves
12 Rd7 loss in 2 half-moves
13 Re7 loss in 2 half-moves
14 Rf1 loss in 2 half-moves
15 Rf2 loss in 2 half-moves
16 Rf3 loss in 2 half-moves
17 Rf4 loss in 2 half-moves
18 Rf5 loss in 2 half-moves